using System;

using Org.BouncyCastle.Asn1;

namespace Org.BouncyCastle.Asn1.Cms
{
	public class OtherRecipientInfo
		: Asn1Encodable
	{
		private DerObjectIdentifier	oriType;
		private Asn1Encodable		oriValue;

		public OtherRecipientInfo(
			DerObjectIdentifier	oriType,
			Asn1Encodable		oriValue)
		{
			this.oriType = oriType;
			this.oriValue = oriValue;
		}

		public OtherRecipientInfo(
			Asn1Sequence seq)
		{
			oriType = DerObjectIdentifier.GetInstance(seq[0]);
			oriValue = seq[1];
		}

		/**
		 * return a OtherRecipientInfo object from a tagged object.
		 *
		 * @param obj the tagged object holding the object we want.
		 * @param explicitly true if the object is meant to be explicitly
		 *              tagged false otherwise.
		 * @exception ArgumentException if the object held by the
		 *          tagged object cannot be converted.
		 */
		public static OtherRecipientInfo GetInstance(
			Asn1TaggedObject	obj,
			bool				explicitly)
		{
			return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
		}

		/**
		 * return a OtherRecipientInfo object from the given object.
		 *
		 * @param obj the object we want converted.
		 * @exception ArgumentException if the object cannot be converted.
		 */
		public static OtherRecipientInfo GetInstance(
			object obj)
		{
			if (obj == null || obj is OtherRecipientInfo)
				return (OtherRecipientInfo)obj;

			if (obj is Asn1Sequence)
				return new OtherRecipientInfo((Asn1Sequence)obj);

			throw new ArgumentException("Invalid OtherRecipientInfo: " + obj.GetType().Name);
		}

		public DerObjectIdentifier OriType
		{
			get { return oriType; }
		}

		public Asn1Encodable OriValue
		{
			get { return oriValue; }
		}

		/**
		 * Produce an object suitable for an Asn1OutputStream.
		 * <pre>
		 * OtherRecipientInfo ::= Sequence {
		 *    oriType OBJECT IDENTIFIER,
		 *    oriValue ANY DEFINED BY oriType }
		 * </pre>
		 */
		public override Asn1Object ToAsn1Object()
		{
			return new DerSequence(oriType, oriValue);
		}
	}
}
